Lesson Plan10:25
Howard Hughes Medical Institute

The Making of the Fittest: Natural Selection and Adaptation

For Students 8th - Higher Ed Standards
The pocket mouse can be light brown like the sands of the desert, or dark brown like the volcanic lava flows that are interspersed throughout New Mexico's Valley of Fire. It seems that predators have weeded out light colored mice in this...
Activity
Integrated Physics and Chemistry

Law of Conservation of Matter

For Students 9th - 12th
Does mass change during a chemical reaction? Demonstrate the Law of Conservation of Matter while encouraging class members to be creative with a two-part lesson. First, learners use Alka-Seltzer® tablets and water to demonstrate the...
Lesson Plan
Curated OER

The Effect of Natural Selection on Genes, Traits and Individuals

For Teachers 9th - 12th Standards
Rotating through five stations, evolutionary biologists explore the question of how changes in DNA facilitate the changes in a population over time. High-quality, colorful cards of animals, skeletons, skulls, and DNA sequences can all be...
Lesson Plan15:27
Howard Hughes Medical Institute

The Making of the Fittest: Evolving Switches, Evolving Bodies

For Teachers 9th - Higher Ed Standards
How did the stickleback fish, which was once ocean bound, evolve to be able to persist in freshwater lakes? Hear from the scientists who identified the genes and related switches that allowed these survivors to adapt. In addition to the...
Activity
Discovery Education

The Time of Our Life

For Teachers 6th - 8th
Mammals are some of the newest organisms to appear on Earth. Young scholars complete an activity that results in a timeline showing the appearance of different types of living organisms. Provided with a list that spans from prokaryotes...
Lesson Plan
Howard Hughes Medical Institute

Icefish Adaptations

For Teachers 7th - 12th Standards
What adaptations exist in order for icefish to survive the subfreezing temperatures of the Antarctic Ocean? Middle and high schoolers can find out through watching a related 13-minute video and performing a simple investigation to...
Activity
It's About Time

Concentrating on Collisions

For Teachers 7th - 12th
How important is momentum? Pupils investigate and apply the definition of momentum as they conduct analyses during a series of one-dimensional collisions. They infer the relative masses of two objects by carefully staging and predicting...
Activity
American Chemical Society

Energy and Entropy of a Stretched Rubber Band

For Teachers 9th - 12th Standards
Stephen Perry invented and patented the modern rubber band in 1845. Young scientists put his discovery to work as they use rubber bands to observe entropy and enthalpy. They determine the change in free energy to figure out if it...
Activity
Howard Hughes Medical Institute

Using DNA to Explore Lizard Phylogeny

For Teachers 6th - 12th
In a fun and interactive two-day lesson, learners sort anole lizard pictures by appearance. Next, they watch a video about the anoles and re-sort based on the information in the video. In addition to physical characteristics, budding...
Activity
Howard Hughes Medical Institute

Lactase Persistence: Evidence for Selection

For Teachers 9th - 12th Standards
What's the link between lactase persistence and dairy farming? Biology scholars analyze data to find evidence of the connection, then relate this to human adaptation. Working individually and in small groups, learners view short video...
Activity
Teach Engineering

Bubbles and Biosensors

For Teachers 10th - 12th
Bubbles aren't just for children. In the third installment of a seven-part series, teenagers use bubble solution to create bubbles and observe patterns of refraction on the bubble surfaces. Application of this concept to thin films in...
Activity
American Chemical Society

Entropy and Enthalpy Changes

For Teachers 9th - 12th Standards
My room isn't messy — it's a scientific experiment in entropy! Scholars investigate entropy, enthalpy, and spontaneity through a guided procedure and set of questions. The lesson connects the Second Law of Thermodynamics, energy...
Activity
New Mexico State University

Lab 6: Kepler's Laws

For Teachers 9th - 12th
A 15-page package thoroughly teaches your physics or astronomy learners about Kepler's three laws of planetary motion. Each one is stated and explained. Class members answer questions, solve problems, and participate in the classic...
Activity
Teach Engineering

Swinging Pendulum

For Teachers 9th - 12th Standards
Get into the swing of things. Pupils use a pendulum to demonstrate the conversion of potential energy to kinetic energy and back. After measuring the speed of a pendulum and compare it to the calculated theoretical speed, they...
Activity
Colorado State University

Why Can Warm Air "Hold" More Moisture than Cold Air?—Vapor Pressure Exercise

For Teachers 6th - 12th
Does it feel a little humid in here? Learners assume the role of water vapor in the atmosphere as they explore the differences between warm and cold air. They roll dice to determine their level of energy, which determines if they...
Activity
National Science Teachers Association

Adopt-a-Dino

For Teachers 5th - 7th
Earth historians research a specific dinosaur, write a paper about the Mesozoic era that it lived in, create an artistic rendition of the environment, and give a presentation in class about what they learned. Be aware that there are...
Activity
Colorado State University

If You Can't Predict the Weather, How Can You Predict the Climate?

For Teachers 6th - 12th
Why is the weather man wrong so often? Young climatologists discover how chaos rules both weather and climate through a math-based activity. Using an iterative equation, the class examines how small day-to-day weather events total up to...
Activity
NASA

Solar Storms

For Students 8th - 10th
In this solar storms worksheet, students use an on line source to read newspaper stories about scientific theories and hypothesis related to space weather phenomena. Students answer 7 questions about past solar storms and compare ideas...
Activity
Curated OER

How Gear Systems Work: A Research Project

For Teachers 4th
Students apply information regarding simple machines along with the math concept "ratios." The teacher introduces the concept that technology is the application of scientific knowledge and mathematics concepts to solve a problem. This is...
Activity
Science Buddies

Science Buddies: Piaget's Theory: One Cup of Water Is Less Than One Cup of Water

For Students 9th - 10th
In this human behavior science fair project, the student will learn about Piaget's developmental stages and the Theory of Conservation. The student will investigate the age at which children understand the equality of numbers and mass....
Activity
Science Buddies

Science Buddies: What's the Fastest Way to Cool a Soda?

For Students 9th - 10th
When you are craving an ice cold drink of soda, the last thing you want is to be stuck with a bunch of soda cans at room temperature. This fun science experiment sends you on a discovery to find the fastest way to cool soda with...
Activity
PBS

Pbs: Nova: Time Travel: Think Like Einstein

For Students 9th - 10th
Addressed with questions about relative speed and the speed of light, students begin to "think like Einstein" while exploring the science behind the mystery of time travel.
Activity
NumberNut

Number Nut: Week and Weekends

For Students 3rd - 5th
Learn about the origins of a week in this integrated lesson. This lesson explores scientific theories and mathematical facts that are the basis for the time period that we call a week. Included in this lesson are two related, interactive...